Political border-patrol, USA

Ilan Pappé: *I'm an Israeli critic of Zionism. Why did border agents detain me at a US airport?*

It seems that US government "security" agencies are meddling politically, which they have no business doing. Fortunately they did not bar his entry to the US this time.

I don't know Pappé's views in detail and I probably would disagree with part of them — but I am incensed at the US government for meddling in this way.